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507656-01  7/2018

Model Number Identification

2

CH 35

18

-

A -

F

Unit Type

CH = Indoor Coil - Horizontal

Series

Nominal Cooling Capacity

18 = 1.5 tons

24 = 2 tons

30 = 2.5 tons

36 = 3 tons

42 = 3.5 tons

48 = 4 tons
51 = 4 tons
60 = 5 tons

Cabinet Width

A = 14-1/2 in.
B = 17-1/2 in.
C = 21 in.
D = 24-1/2 in.

Cabinet

F = Cased

(Furnaces with the same cabinet width letter designation
will physically match the indoor coil.)

Metering Device

2 = Factory-Installed RFC

(The factory-installed orifice must be removed and
replaced by a properly sized expansion valve.)

Specifications 

General Data

Model No.

CH35

-18A-2F

CH35

-24A-2F

CH35

-24B-2F

CH35

-30A-2F

CH35

-30B-2F

Nominal size - tons

1.5

2

2

2.5

2.5

Line
Connections

Suction/Vapor o.d. - in. sweat

3/4

3/4

3/4

3/4

3/4

Liquid o.d. - in. sweat

3/8

3/8

3/8

3/8

3/8

Condensate drain (fpt) - in.

3/4

3/4

3/4

3/4

3/4

Evaporator
Coil

Net face area - sq. ft.

1.75

3.5

3.5

4.33

4.67

Tube diameter - in.

3/8

3/8

3/8

3/8

3/8

Number of rows

2

3

2

3

3

Fins per inch

18

14

19

16

14

Horizontal
Matching
Furnace

Cabinet Designation

A

A

B

A

B

Coil and Furnace Height

14-1/2

14-1/2

17-1/2

14-1/2

17-1/2

Shipping Data

lbs. - 1 package

43

45

47

55

53

Specifications

General Data

Model No.

CH35

-36A-2F

CH35

-36B-2F

CH35

-36C-2F

CH35

-42B-2F

CH35

-42C-2F

Nominal size - tons

3

3

3

3.5

3.5

Line
Connections

Suction/Vapor o.d. - in. sweat

3/4

3/4

3/4

7/8

7/8

Liquid o.d. - in. sweat

3/8

3/8

3/8

3/8

3/8

Condensate drain (fpt) - in.

3/4

3/4

3/4

3/4

3/4

Evaporator
Coil

Net face area - sq. ft.

3.5

4.67

5.83

5.78

5.83

Tube diameter - in.

3/8

3/8

3/8

3/8

3/8

Number of rows

3

2

2

3

3

Fins per inch

12

18

18

12

13

Horizontal
Matching
Furnace

Cabinet Designation

A

B

C

B

C

Coil and Furnace Height

14-1/2

17-1/2

21

17-1/2

21

Shipping Data

lbs. - 1 package

47

48

55

60

60

Summary of Contents for CH35 Series

Page 1: ...ne Connections 5 Leak Testing Evacuating and Charging 6 Sealing Ducts 6 Condensate Drain Connection 6 Blower Speed Connection 7 Maintenance 8 General CH35 all aluminum coil horizontal evaporator coils...

Page 2: ...3 8 3 8 3 8 Condensate drain fpt in 3 4 3 4 3 4 3 4 3 4 Evaporator Coil Net face area sq ft 1 75 3 5 3 5 4 33 4 67 Tube diameter in 3 8 3 8 3 8 3 8 3 8 Number of rows 2 3 2 3 3 Fins per inch 18 14 19...

Page 3: ...d of pressure Installation WARNING Risk of explosion or fire Can cause injury or death Recover all refrigerant to relieve pressure before open ing the system Install the furnace or air handler accordi...

Page 4: ...LY AIR UNIT REAR TEST HOLE AIR FLOW FIELD FABRICATED INSULATED BLOCK OFF PLATE Figure 2 D Width Coil with C Width Furnace Top View SUPPLY AIR UNIT FRONT PLUMBING CONNECTIONS SUPPLY AIR UNIT REAR AIR F...

Page 5: ...eat damage during brazing See figure 7 WATER SATURATED RAGS PLACE A WET RAG AGAINST COIL CABINET AND AROUND THE SUCTION LINE CONNECTION BRAZE CONNECTION ALLOW PIPE TO COOL BEFORE REMOVING WET RAG 1 2...

Page 6: ...e coil cabinet flanges WARNING There must be an airtight seal between the bottom of the furnace and the return air plenum Use fiberglass sealing strips caulking or equivalent sealing method between th...

Page 7: ...EADING SECONDARY DRAIN PAN 2 51MM TRAP DEPTH P TRAP 49P66 REQUIRES A LARGER INSTALLATION SPACE THAN THE J TRAP 91P90 Figure 10 Typical Main and Overflow Drain Installations Blower Speed Connection Pro...

Page 8: ...his or any other maintenance turn off all power to the indoor unit at the main unit disconnect switch It is also recommended that you wear personal protective gear safety glasses and or a face shield...

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